EP 1220181 B1 20050810 - Tunnel monitoring system in a tunnel
Title (en)
Tunnel monitoring system in a tunnel
Title (de)
Tunnelüberwachungssystem in einem Tunnel
Title (fr)
Système de surveillance dans un tunnel
Publication
Application
Priority
EP 00128758 A 20001230
Abstract (en)
[origin: EP1220181A1] Tunnel monitoring system comprises ultrasonic sensors (7, 9, 10) arranged along the longitudinal path of a road lane (2, 4) so that vehicles (3, 5) pass through the beam transmission and receipt areas (11, 12). Corresponding sensor signals are output to an analysis unit where a speed measurement unit is provided with which the speed of each vehicle can be determined from its travel time between two sensors. <??>The monitoring system can be expanded to provide measurements of vehicle position, direction and density as well as enabling determination of vehicle types. Danger situations can be quickly detected and reactions to a current situation quickly implemented by control of traffic guidance and safety systems.
IPC 1-7
IPC 8 full level
E21F 11/00 (2006.01); G08G 1/01 (2006.01); G08G 1/04 (2006.01); G08G 1/052 (2006.01); G08G 1/08 (2006.01)
CPC (source: EP US)
G08G 1/04 (2013.01 - EP US); G08G 1/052 (2013.01 - EP US); G08G 1/08 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1220181 A1 20020703; EP 1220181 B1 20050810; AT E301861 T1 20050815; DE 50010935 D1 20050915; JP 2004517419 A 20040610; JP 3838975 B2 20061025; NO 20033006 D0 20030630; NO 20033006 L 20030630; US 2004059503 A1 20040325; US 6925377 B2 20050802; WO 02054368 A1 20020711
DOCDB simple family (application)
EP 00128758 A 20001230; AT 00128758 T 20001230; DE 50010935 T 20001230; EP 0115273 W 20011221; JP 2002555391 A 20011221; NO 20033006 A 20030630; US 45193503 A 20030625